Fluid-elastic interactions near contact at low reynolds number

B Rallabandi - Annual Review of Fluid Mechanics, 2024 - annualreviews.org
Interactions between fluid flow and elastic structures are important in many naturally
occurring and engineered systems. This review collects and organizes recent theoretical …

Impurity effects at hydrophobic surfaces

Y Uematsu, DJ Bonthuis, RR Netz - Current Opinion in Electrochemistry, 2019 - Elsevier
The effective charge of hydrophobic surfaces and in particular of the air–water interface is a
crucial parameter for electrochemistry, colloidal chemistry and interfacial science, but …

Coalescence of bubbles with mobile interfaces in water

B Liu, R Manica, Q Liu, E Klaseboer, Z Xu, G **e - Physical review letters, 2019 - APS
The fluid flow inside a thin liquid film can be dramatically modified by the hydrodynamic
boundary condition at the interfaces. Aqueous systems can be easily contaminated by trace …

Microscale marangoni surfers

K Dietrich, N Jaensson, I Buttinoni, G Volpe, L Isa - Physical review letters, 2020 - APS
We apply laser light to induce the asymmetric heating of Janus colloids adsorbed at water-
oil interfaces and realize active micrometric “Marangoni surfers.” The coupling of …

Rapid detachment of hydrogen bubbles for electrolytic water splitting driven by combined effects of Marangoni force and the electrostatic repulsion

X Lu, D Yadav, B Ma, L Ma, D **g - Journal of Power Sources, 2024 - Elsevier
Electrolysis efficiency is significantly hindered by the bubbles on the electrode surface.
Therefore, understanding the bubble evolution process is vital to achieve faster detachment …

Unsteady drag force on an immersed sphere oscillating near a wall

Z Zhang, V Bertin, MH Essink, H Zhang… - Journal of Fluid …, 2023 - cambridge.org
The unsteady hydrodynamic drag exerted on an oscillating sphere near a planar wall is
addressed experimentally, theoretically and numerically. The experiments are performed by …

Charged surface-active impurities at nanomolar concentration induce Jones–Ray effect

Y Uematsu, DJ Bonthuis, RR Netz - The journal of physical …, 2018 - ACS Publications
The electrolyte surface tension exhibits a characteristic minimum around a salt concentration
of 1 mM for all ion types, known as the Jones–Ray effect. We show that a consistent …

Numerical investigation on the bubble rising dynamics in ratchet channels filled with viscoelastic liquids

Y Li, W Yuan, Q Ba, M Mei, W Wu - Physics of Fluids, 2023 - pubs.aip.org
In this paper, we investigated the dynamics of a bubble rising inside ratchet channels filled
with viscoelastic liquids by means of volume-of-fluid-based direct numerical simulations. The …

On peculiar behaviours at critical volumes of a three-dimensional bubble rising in viscoelastic fluids

W Yuan, M Zhang, BC Khoo, N Phan-Thien - Journal of Non-Newtonian …, 2021 - Elsevier
In this paper, we carried out an investigation of the dynamics of an air bubble rising in
viscoelastic liquids with increasing volumes via volume-of-fluid based direct numerical …

Nanomolar surface-active charged impurities account for the zeta potential of hydrophobic surfaces

Y Uematsu, DJ Bonthuis, RR Netz - Langmuir, 2020 - ACS Publications
The electrification of hydrophobic surfaces is an intensely debated subject in physical
chemistry. We theoretically study the ζ potential of hydrophobic surfaces for varying pH and …